A friend of Spelling described what happened: “[The photographer] followed her into the driveway of the school. She pulled into the driveway and tried to get away from him,” the friend tells PEOPLE. “She reversed to leave and then hit the wall.”

“He thn STILL got out to try to get pics,” Spelling, 38, continued in her Tweet. “10 school moms chased him away. Wht will it take? Someone dying for paparazzi to stop? Going to dr now to check on baby. I think its just shock.”

According to her friend, Spelling’s car was only slightly banged up. “She had minor damage to her car,” the friend says, “and there’s minor damage to the wall at the school.”